ordinary chondrite
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Ordinary chondrites are a type of stony meteorite characterized by the presence of chondrules, which are small, spherical inclusions formed from molten droplets in the early solar nebula. They are the most abundant class of meteorites, making up over 85% of all meteorite falls, and are believed to have originated from S-class asteroids.1
Ordinary chondrites formed approximately 4.56 billion years ago and are chemically similar to the Sun, with the exception of volatile elements like hydrogen and helium. Their composition and primitive nature suggest they retain valuable information about the processes that occurred in the solar nebula before and during planet formation. These meteorites are primarily composed of silicate minerals such as olivine and pyroxene, along with nickel-iron metals and iron sulfide.1
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meteoriteChondrites…subdivided into three main classes—ordinary, carbonaceous, and enstatite chondrites—and these in turn have been divided into a number of groups.
Read More…subdivided into three main classes—ordinary, carbonaceous, and enstatite chondrites—and these in turn have been divided into a number of groups.
Read More- meteoriteAssociation of meteorites with asteroids
…the same minerals found in ordinary chondrites, but they also are present in a number of other meteorite types. The C class asteroids (e.g., Mathilde, observed by NEAR Shoemaker) have low albedos, and their more featureless spectra indicate the presence of light-absorbing materials, although at least half have a spectral…
Read More…the same minerals found in ordinary chondrites, but they also are present in a number of other meteorite types. The C class asteroids (e.g., Mathilde, observed by NEAR Shoemaker) have low albedos, and their more featureless spectra indicate the presence of light-absorbing materials, although at least half have a spectral…
Read More - meteoriteThe ages of meteorites and their components
…radionuclide aluminum-26 in chondrules from ordinary and carbonaceous chondrites have been interpreted to indicate that they formed over an extended period from 1 million to at least 3 and perhaps as long as 10 million years after the refractory inclusions. There is some debate, however, over whether these ages, particularly…
Read More…radionuclide aluminum-26 in chondrules from ordinary and carbonaceous chondrites have been interpreted to indicate that they formed over an extended period from 1 million to at least 3 and perhaps as long as 10 million years after the refractory inclusions. There is some debate, however, over whether these ages, particularly…
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